Hello! Great question! I have asked the team and have confirmed that the purchase of “Growth Advanced” Scroll will unlock the rewards under “Advanced Scroll”. You will retroactively be able to gain all the rewards for the levels you have achieved as well as any subsequent levels you will achieve after.

Purchasing the 600 ingot “Growth Advanced” scroll will increase your levels by 5.

Example, if you are at lvl 60, your level will be increased to 65.

Purchasing the 1000 ingot “Growth Advanced” scroll will increase your levels by 20.

Example, if you are at lvl 60, your level will be increased to 80.

Keep in mind that the maximum level is 100 and you will not be able to increase your level beyond it.

Example, if you are already level 100 and were thinking of buying the “Growth Advanced” scroll, you would benefit more from buying the 600 ingot “Growth Advanced” scroll, since the 1000 ingot one will not offer any additional rewards since your level is maxed out.

~Jib

Haha np! Yup, it's a good event as long as you can invest some time to do the missions